摘要
在滇西北香格里拉地区,以长苞冷杉(Abiesgeorgei)林、丽江云杉(Picealikiangensis)林作为亚高山针叶林的代表,以川滇高山栎(Quercusaquifolioides)林作为硬叶栎类林的代表,分别选择了6块样地,采用Shannon-Wiener多样性指数(H)、Simpson多样性指数的倒数(D')、Pielou均匀度指数(JH、JD)分别测定其树种多样性,并进行了比较研究。结果表明,三个森林类型的Shannon Wiener指数、Simpson指数的倒数、物种丰富度的顺序均为:长苞冷杉林>川滇高山栎林>丽江云杉林;而前两类森林的Pielou均匀度指数差异不大,但都高于丽江云杉林的均匀度指数值。滇西北的川滇高山栎具有很强的萌生能力。人工种植的亚高山针叶林的树种多样性较原始林低,需要较长时间的恢复过程。亚高山针叶林的存在极大地丰富了云南省的树种多样性,使云南植被的垂直地带性得到了充分体现。
The tree species diversity values of three primary forest types(Abies georgei forest,Picea likiangensis forest and Quercus aquifolioides forest) were measured using Shannon-Wiener index(H),the reciprocal of Simpson index(D'),Pielou evenness index(JH, JD)in Shangrila, Yunnan Province, China. All the four indices of the forest types were ranked as: Abies georgei forest > Quercus aquifolioides forest > Picea likiangensis forest, although the former two did not show significant difference in terms of Pielou evenness index. The Quercus forest in the Northwest of Yunnan Province showed a strong sprouting ability. The species diversity of 30-year-old man-made forests in the Western Sichuan Province was still lower than that of primary forests, indicating a longer process in forest recovery. The occurrence of the subalpine coniferous forest enriches the tree species diversity and forest vegetation types of Yunnan Province.
出处
《山地学报》
CSCD
2003年第5期568-575,共8页
Mountain Research
基金
中国科学院知识创新工程项目(KZCX2-406)
国家自然科学基金(30070618)~~
关键词
亚高山针叶林
硬叶栎类林
树种多样性
滇西北
Subalpine coniferous forest
Quercus sclerophyllous forest
Tree species diversity
Northwest Yunnan Province
